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A comment on Bing Says 25% of All Searches Are Voice Searches. Parent comment
150b Bing searches/yr (from 12% mkt share) -->37.5b voice searches 500m iOS devices (ignoring Cortana/Alexa as negligible) -->75m have ever used Siri (15%)
Edit: found a source on Quora that suggested 1b Siri queries per week. So it's in the ballpark- since not all of those will be web searches
Edit: found a source on Quora that suggested 1b Siri queries per week. So it's in the ballpark- since not all of those will be web searches